Trigger motor



I ,5 R1924 H. o. RUSSELL ET AL 1 11 176 TRIGGER MOTOR Filed March 2,1922 Patented Get. '7, 1924.

'ENT OFFICE.

HERBERT 0. RUSSELL. OF DETROIT, MICHIGAN, AND CHARLES LEIGH PAULUS, OFDAYTON, OHIO.

TRIGGER MOTOR.

Application filed March 2, 1922. Serial No. 540,508.

I! '0 all 'LUil am it may concern.

Be it known that we, HERBERT O. RUssnLL and CHARLES LEIGH PAULUS,citizens of the United States, residing, respectively,-at Detroit andDayton, in the counties of Wayne and Montgomery and States of Michiganand Ohio, have invented certain new and useful Improvements in TriggerMotors, of which the following is a specification.

This invention relates to trigger motors particularly adapted for useupon a Browning gun and operated by a pull upon the flexible cableencased in a semi-flexible metal casing.

The object of the invention is to produce a simple, practical andreliable trigger motor for use on the Browning gun operated by the TypeA method of synchronizing the shots of a machine gun with the propeller'20 of an airplane.

'With the above and other objects in view, the invention consists in thenovel construction, combination and arrangement herein fully described,illustrated and claimed.

In the accompanying drawings:

Figure l is a vertical longitudinal section through the improved triggermotor.

Figure 2 is a plan View thereof.

Figure 3 is an end elevation thereof.

Figure at is an end elevation taken from the opposite end of the triggermotor.

The improved trigger motor comprises a housing 1 having a base 2 andsecuring means 3 for fastening the housing in positlon. Mounted forreciprocatory movement longitudinally of the housing is a plunger 4.-having a reduced shank or stem 5 around which is placed a coiledretracting spring 6 which serves to return the plunger 4 to its normalposition after it has been drawn outwardly by the impulse cable, theextremity of which is held in an end socket 7 in the plunger 4.

Operating substantially at a right angle to the plunger l is a searslide 8 which is adapted to be reciprocated by the plunger a and whichis retracted to its inward position by means of a spring 9 interposedbetween a fixed shoulder 10 in the housing and extension or shoulder 11on the sear slide. The plunger 4 is formed with a cam face 12 whichcooperates with a correspondlng cam face 13 on the inner end of the searslide.

In operation, the plunger 4 is pulled outwardly by the impulse cablewhich is connected with any suitable impulse generator.

In the outward movement of the plunger the latter cams against the searslide 8 and thrusts the latter outwardly thereby tripping the trigger ofthe machine gun (not shown) in the connection with which the triggermotor is used.

The mechanism above described also has the advantage that by meansthereof a single shot may be fired.

Having thus described our invention, we claim:

1. In a trigger motor for machine guns, a trigger motor housing animpulse cable op erated plunger slidable in said housing, a recess insaid plunger having one of its walls inclined, and a scar slide adaptedto be operated by said plunger, said sear slide having a portionprovided with an inclined surface and adapted to extend into saidrecess.

2. In a trigger motor for machine guns, a trigger motor housing animpulse cable operated plunger slidable in said housing, a recess insaid plunger having one of its walls inclined, and a sear slide adaptedto be operated by said plunger in a direction substantially at rightangles thereto, said sear slide having a portion provided with'aninclined surface and adapted toextend into said recess.

3. In a trigger motor for machine guns, a trigger motor housing animpulse cable operated plunger slidable in said housing, a recess insaid plunger having one of its walls inclined, and a sear slide adaptedto be operated by said plunger in a direction substantially atrightangles thereto, said sear slide having a portion provided with aninclined surface and adapted to extend into said recess, said plungerand said slide being provided with yieldable means'for returning thesame to their normal positions.

In a trigger motor for machine guns, a trigger motor having an impulsecable operated plungerslidable in said housing, a re-- cess in saidplunger having one of its walls, inclined, and a sear slide adapted tobe oper ated by said plunger, said sear slide having a portion providedwith an inclined surface and adapted to extend into said recess, saidslide being further provided with a shoulder having a surface parallelto and in slidable engagement with said plunger.

5. In a trigger motor for machine guns, a trigger motor having animpulse cable operated plunger slidable in said lions-in", a re oess insaid plunger having one of its Walls inclined, and a sear slide adaptedto be operated by said plunger, said sear slidehaving a portion providedwith an inclined surface and adapted to extend into said recess, saidslide being further provided With a shoulder having a surface parallelto and in slidable engagement with said plunger,

yieldable means between said shoulder and 10 said housing and betweensaid plunger and said housing for retaining said slide and said plungerin their normal positions.

In testimony whereof We aflix our signatures.

HERBERT RUSSELL. CHARLES LEIGH PAULUS.

